<span>They celebrate festively.
This passage shows that even though they competed against each other in the tournaments, they would celebrate for days afterwards with as much singing, dancing, and eating as they possibly could take. This shows how festively and elaborately they celebrate.</span>
Answer:
I believe it's Adverbial.
Explanation:
D, as 'Gerunds' is a verb and normally ends with ing in the present tense :)
